| (19) |
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(11) |
EP 0 118 595 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
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05.02.1986 Bulletin 1986/06 |
| (43) |
Date of publication A2: |
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19.09.1984 Bulletin 1984/38 |
| (22) |
Date of filing: 28.10.1983 |
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| (84) |
Designated Contracting States: |
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BE DE FR GB IT NL SE |
| (30) |
Priority: |
16.03.1983 CA 423718
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| (71) |
Applicant: THE MINISTER OF NATIONAL DEFENCE OF HER MAJESTY'S CANADIAN GOVERNMENT |
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| (72) |
Inventors: |
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- Carrier, Christian J. L.
()
- Shea, Charles J.
()
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| (54) |
Weather seal arrangement for solid rocket motor igniters |
(57) A low cost easily installed and reliable weather seal for the nozzle throat of a
solid propellant rocket motor which uses an aft end ignition system. The igniter cartridge,
known per se, which is located in the throat of the rocket motor is provided with
an elastomeric 0-ring in the base of the cartridge thus sealing the gap between it
and the inside surface of the exit cone of the nozzle. This structure not only provides
an effective weatherseal but also provides a convenient means of positively retaining
the igniter cartridge in place.